Film types fills have been popular with the Cooling Tower Industry as a result of their efficiency of not only handling large quantities of water but also the overall tower efficiency. However in the case of heavily contaminated water, film type fills are susceptible to accumulating deposits and often make way for the use of splash type fills for effective water cooling. The forgiving nature of splash fills towards ‘dirty’ water and imperfect water distribution is offset by the need to have larger towers and thus higher capital costs as well as pumping heads.
Splash fills work on the principle of causing the flowing water to fall through a grid of ‘splash bars/grids’ causing the water droplets to break up and increasing the contact time between water and air. As the falling water encounters multiple layers of these splash fills, the droplets keep dividing into smaller sizes thereby increasing the heat transfer and thus cool the water.
There are two basic types of fill: splash fill and film fill. Splash fill is designed to interrupt the water and cause, as the name suggests, splashing. Film fill, on the other hand, is made up of sheets of material that the water travels across. Pieces of fill are assembled together to create larger blocks which, in turn, are used to create various thickness and heights to suit the particular cooling tower they will be used
Splash fills maximize the water-surface-to-air interface. Instead of sheet surface, splash fills increase the water droplet surface. The splash fill breaks the water into smaller droplets, continually exposing more water surface to the airflow. The splash fill also allows the water to stay suspended allowing greater time exposure to the air. Historically, splashing fills have been made of a wood lath matrix or other forms of PVC or Polyethylene.
|Size||750 x 750, 750 x 1000 mm|
|Type||Opti Grid Fill|
|Application/Used||Cooling Tower Industry|
ADVANTAGES OF SPLASH FILLS
- Sturdy PVC construction
- Highly efficient
- Self-extinguishing for excellent fire rating
- Easy, quick installation